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Scoping review of early pain-related outcome domains and measurement instruments after degenerative lumbar spine surgery.

Optimization of perioperative pain interventions in lumbar spine surgery could reduce the incidence of acute and persistent postoperative pain and opioid consumption. Standardization in early outcome measurement provides a solid foundation for future clinical and research practices and should be integrated in core outcome sets for long-term treatment outcome evaluations. This scoping review provides an overview of outcomes used when evaluating early perioperative pain interventions after lumbar spine surgery.

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California cannabis cultivation and processing workers: A qualitative analysis of physiological exposures and health effects.

Cannabis is a multi-billion-dollar California industry, but little is known about the occupational hazards or health experiences of cannabis cultivation workers. Respiratory and dermal exposures, musculoskeletal hazards, and other agricultural hazards have been identified in previous research. Even in a post-legalization framework, cannabis work is stigmatized and most cannabis is still produced illegally. Qualitative research is essential for establishing rapport with cannabis workers to understand their experiences and concerns.

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Efficacy of Onabotulinum Toxin A on Obsessive-Compulsive Traits in a Population of Chronic Migraine Patients.

Drug addiction may play an important role in chronic migraine (CM) with medication-overuse headache (MOH). Psychiatric diseases are associated with CM, but data regarding obsessive-compulsive disorder (OCD) are lacking. We aimed to establish the prevalence of OCD traits in CM patients with MOH and the impact on onabotulinum toxin A (OBT-A) treatment.

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Neurostimulation in the patient with chronic pain: forecasting the future with data from the present – data-driven analysis or just dreams?

Chronic pain involves a structured and individualized development of neurophysiological and biological responses. The final expression in each patient correlates with diverse expressions of mediators and activations of different transmission and modulation pathways, as well as alterations in the structure and function of the brain, all of which develop according to the pain phenotype. Still today, the selection process for the ideal candidate for spinal cord stimulation (SCS) is based on results from test and functional variables analysis as well as pain evaluation. In addition to the difficulties in the initial selection of patients and the predictive analysis of the test phase, which undoubtedly impact on the results in the middle and long term, the rate of explants is one of the most important concerns, in the analysis of suitability of implanted candidates. A potential for useful integration of genome analysis and lymphocyte expression in the daily practice of neurostimulation, for pain management is presented. Structural and functional quantitative information provided by imaging biomarkers will allow establishing a clinical decision support system that improve the effectiveness of the SCS implantation, optimizing human, economic and psychological resources. A correct programming of the neurostimulator, as well as other factors associated with the choice of leads and their position in the epidural space, are the critical factors for the effectiveness of the therapy. Using a model of SCS based on mathematical methods and computational simulation, the effect of different factors of influence on clinical practice studied, as several configurations of electrodes, position of these, and programming of polarities, in order to draw conclusions of clinical utility in neuroestimulation therapy.

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C1 Cervical Stenosis Causing Chronic Neck Pain and Ataxia: The Importance of Physical Examination and Radiographic Imaging.

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Hemophilia A Resulting in Severe Hyperesthesia Due to Extraparenchymal Spinal Cord Hemorrhage in a Young Golden Retriever Puppy.

A ten-week-old male Golden retriever puppy was presented with severe hyperesthesia, mild neurological deficits and episcleral bleeding. Clotting times showed a normal prothrombin time (PT) and prolonged activated partial thromboplastin time (aPPT). Computed tomography (CT) of the vertebral column showed intradural, extraparenchymal hyperattenuating changes on precontrast CT images and epidural mass lesions, suggestive of hematorrhachis. Hemophilia A was confirmed by a low-factor VIII activity (FVIII:C). Although the dog improved clinically with intravenous analgesia and cage rest, it was euthanized by the owners' choice because of the risk of developing future episodes of spontaneous hemorrhage. In young male puppies with severe hyperesthesia and mild neurological deficits, hemophilia A should be considered as a possible differential diagnosis.

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Randomized controlled trial (RCT) comparing ultrasound-guided pudendal nerve block with ultrasound-guided penile nerve block for analgesia during pediatric circumcision.

Optimal analgesia for circumcision is still debated. The dorsal penile nerve block has been shown to be superior to topical and caudal analgesia. Recently, the ultrasound-guided pudendal nerve block (group pudendal) has been popularized. This randomized, blinded clinical trial compared group pudendal with ultrasound-guided dorsal penile nerve block (group penile) under general anesthesia for pediatric circumcision.

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Feasibility and usefulness of brain imaging in catatonia.

Catatonia is a well characterized psychomotor syndrome that has recognizable motor, affective, behavioural and vegetative manifestations. Despite recent demonstration that catatonia is often associated with brain imaging abnormalities, there is currently no consensus or guidelines about the role of brain imaging. In this study, we assessed the feasibility of brain imaging in a series of patients with catatonia in a routine clinical setting and estimated the prevalence of clinically relevant radiological abnormalities. Sixty patients with catatonia were evaluated against sixty non-healthy controls subjects with headache. The MRI reports were reviewed, and MRI scans were also interpreted by neuroradiologists using a standardised MRI assessment. In this cohort, more than 85% of brain scans of patients with catatonia revealed abnormalities. The most frequently reported abnormalities in the catatonic group were white matter abnormalities (n = 44), followed by brain atrophy (n = 27). There was no evidence for significant differences in the frequency of abnormalities found in radiology reports and standardised neuroradiological assessments. The frequency of abnormalities was similar to that found in a population of non-healthy controls subjects with headache. This study shows that MRI is feasible in patients with catatonia and that brain imaging abnormalities are common findings in these patients. Most frequently, white matter abnormalities and diffuse brain atrophy are observed.

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History of abuse is associated with thoughts of harm among patients with pain after accounting for depressive symptoms.

Screening for depressive symptoms is often the first step to understanding risk for thoughts of harm among patients with pain. Pain characteristics and history of abuse are also associated with thoughts of harm; however, little is known about these associations after accounting for depressive symptoms. This study examined the association between pain characteristics and history of abuse with thoughts of harm among pain patients with moderate to severe and low to mild depressive symptoms.

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Retroperitoneal paraganglioma in a young patient presenting with hypertensive crisis and transient loss of sight; a rare case report and literature review.

Catecholamine secreting tumors are a rare type of neuroendocrine tumors whose embryological origin is neural crest cells. 80 % to 90 % arise from the chromaffin cells of adrenal medulla while 10 % to 20 % arise from sympathetic and parasympathetic ganglia. Paragangliomas can be symptomatic due to excess catecholamine secretion or can be asymptomatic. Definitive treatment of paragangliomas is surgical resection.

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